Separate quantizaton for U and V plane

This commit adds code to support separate regular quantization for U
and V. They currently always use same quantization parameter, hence
this commit does not change bitstream at all.

Change-Id: Ifaf43e4fd0bcd01b1483f2dacf3ac498003d5db1
diff --git a/test/quantize_func_test.cc b/test/quantize_func_test.cc
index b825607..36a9228 100644
--- a/test/quantize_func_test.cc
+++ b/test/quantize_func_test.cc
@@ -98,7 +98,7 @@
   }
 
   void InitQuantizer() {
-    av1_build_quantizer(bd_, 0, 0, 0, &qtab_->quant, &qtab_->dequant);
+    av1_build_quantizer(bd_, 0, 0, 0, 0, 0, &qtab_->quant, &qtab_->dequant);
   }
 
   void QuantizeRun(bool is_loop, int q = 0, int test_num = 1) {